CONICET | Buscador de Institutos y Recursos Humanos

Macropelopiini is a widely distributed tribe of Tanypodinae with immature stages inhabiting cool seeps, springs, and small streams. The present study evaluated the monophyly and the supporting synapomorphies within a phylogenetic context for the first time for Macropelopiini. The monophyly and the intergeneric relationships were tested by morphologic evidence in a cladistic framework and the information of each homoplastic character evaluated. The monophyly of Macropelopiini is corroborated through the objective synapomorphy ?outer fringe decreasing from base to apex ending in small spines? in the pupa, and the subjective synapomorphies ?tibial spurs with main teeth and short lateral tooth? in males and ?dorsal setae arising from prominent tubercles? in the pupa. Fittkauimyia Karunakaran is excluded from Macropelopiini and Gressitius Sublette & Wirth established as a junior synonym of Alotanypus Roback and the new combination A. antarcticus is proposed. Character combination, mainly through the use of the characters with informative taxonomical value remains an efficient tool to diagnose the Macropelopiini genera.